Well there is a legit BJJ academy in the uk called Black belt academy. Its under Rick young in Scotland though, and as far as I am aware, it does not have sattelite schools. Rick named the academy before the term was popular, and is a jkd instructor under Dan Inosanto , and a bjj black belt under Mauricio Gomes (sorry about any spellings).

If you can find out where and when Alexander Leijten claims to have got his BJJ black belt, i'll happily email any gyms in North Shield's i can find. I don't think there's many.

so far i did a google search in Dutch and all it came up with was a Alex Leijten.
its not uncommon for people named alexander to use alex for short.
it could be the same guy, but it doesn't give much info.

It would help if the OP gives us some more information on how and where they met or came to hear about this guy.

I just started this thread because i heard his name and wondered who he was. Someone i care About might lose her job because of this. Im willing to give my real name and willing to apologize of thats what it takes. So im asking again to please delete this thread.